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I am definitely encountering the issue since updating to 10.15.6. If I leave my Windows 10 VM running it will cause a crash every 24-48 hours. I never had this issue with 10.15.5. It's definitely causing problem. Guess I'll have to shutdown the VM & restart every day which really defeats the purpose of a Mac.
 
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No you won't.

Windows on ARM (WoA) is an exclusive build for Snapdragon SOCs only. Microsoft does not sell a public license for WoA and, even if they did, there is no version for Apple Silicon.
The Snapdragon chips use the same ISA. Microsoft will most likely change their public license and sell it when this new market opens up. Microsoft usually doesn't walk away from free money.
I am definitely encountering the issue since updating to 10.15.6. If I leave my Windows 10 VM running it will cause a crash every 24-48 hours. I never had this issue with 10.15.5. It's definitely causing problem. Guess I'll have to shutdown the VM & restart every day which really defeats the purpose of a Mac.
Welcome to the Windows experience :)
 
Windows 10 ARM will happen but that’s all I read. Actually, I also heard that Federighi our Boot Camp out to pasture but was open to virtualization in general.

edit: just found this vague-but-encouraging statement.

Windows 10 ARM can't run Windows x86 apps. Intel has it's lawyers on the ready if Microsoft ever pulls the trigger. Now can Apple legally do this? Maybe. The reason Apple never went to AMD was that Intel and Apple made an agreement to share CPU patents. Apple bought over the multimedia patents from the PowerPC chips.
 
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Has anyone heard whether Apple Silicon Macs will run a Windows x86-64 VM on VirtualBox or Parallels?

I probably haven’t looked hard enough on the ‘net but I assume someone with a Developer Transition Kit has tested this?
As of this moment the answer is NO it will not. The virtualization of Linux they showed on stage was an ARM build of Linux, so we know that ARM virtualization is supported (which has a good chance of Windows ARM versions working). At this time Rosetta x86 emulation does not support virtualization. This doesn’t mean that it won’t, or that a third party solution won’t exist. I wouldn’t put a lot of hope into performance however. x86 (CISC) is notoriously difficult to emulate on ARM (RISC) platforms. The outstanding performance of Rosetta is likely from using code translation rather than actual emulation - which would work very well for macOS x86 apps where the instruction set is well known, but doesn’t work at all for general emulation. The solution to Windows is likely to end up with something like CrossOver (code translation), remote connections, or physical x86 hardware via expansion cards / thunderbolt connections - the later having been a popular option in the PPC days.
 
I am not denying that you are experiencing these problems, but I work at a fairly large university supporting hundreds of Macs and have not had a single user complain about either of these problems.

I have two Macs running the piece-of-s*** Catalina, and both have this issue...along with many others.
 
Surprisingly Catalina has zero significant issues on my Mac Everything seems to work fine. I haven't tried virtualization though
Likely your applications usage where not memory intensive. I first encountered this App Box kernel memory fault using a game that consumed a lot memory for a couple of hours. It was the normal process of the MacOS restarting and trying to launch the app that failed brought the kernel memory leak issue back again and again. You need to power off and on to clear out the accumulated kernel memory. Just a nasty issue in the manner it failed, you thought something was failing on the Mac. MacOS has been pretty bullet proof against something like this. Yeah you have app fail but not the whole OS. I had 32 GB Ram also. :(
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Honestly, Catalina has been stable for me. From the variety of experiences people seem to be having, there’s no right answer to this.
If you were using a external Apple Magic keyboard paired, the kernel memory issue manifested itself. For anyone encounter this issue, try disabling Bluetooth in preferences and see it the VMware kernel leak still occurs. Thats what fixed for me in 10.15.6 as a work around.
 
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Oh Catalina .... even in your final builds you can't give up your reputation....

I really hope the reason for all of the crashes I get on a regular basis coming in and out of sleep, as well as my other reliability issues is because they had their A-team working on the massive Big Sur release for the past few years.... because Catalina has been a terrible experience.

That OS (Catalina) has just been one massive disaster. I gotta admit by and large the betas of Bug Sur have been more reliable and consistent. Excusing a few very minor graphical /UI glitches.
 
Has anyone heard whether Apple Silicon Macs will run a Windows x86-64 VM on VirtualBox or Parallels?

I probably haven’t looked hard enough on the ‘net but I assume someone with a Developer Transition Kit has tested this?

Apple Silicon Macs will not run Windows x86 on VirtualBox or Parallels, for the obvious reasons that those virtualize, which means the architecture of host and guest OS needs to be the same.

They may run Windows on ARM on VirtualBox or Parallels.

You will be able to run Windows ARM natively

There is zero confirmation to that effect at this point. If anything, Apple seems to be making quite a few "Linux only" nods.

No you won't.

Windows on ARM (WoA) is an exclusive build for Snapdragon SOCs only. Microsoft does not sell a public license for WoA and, even if they did, there is no version for Apple Silicon.

Well, Microsoft might be interested in changing that.

The Snapdragon chips use the same ISA. Microsoft will most likely change their public license and sell it when this new market opens up. Microsoft usually doesn't walk away from free money.

What if Microsoft wants the money, but needs drivers from Apple, and Apple says no? That leaves us with homebrew drivers, which so far isn't looking good either.

And it doesn't really start at drivers. First, Windows would have to boot off of iBoot.
 
I'm glad I didn't update from .5 yet. Now, I only want to know why all of a sudden Twitch and Netflix sometimes cause kernel_task to jump to 400% CPU usage. This seriously impacts my use of my Mac...
 
It’s interesting that VMWare feel the need to publish this publicly rather than go through the normal channels. Do they feel it won’t get fixed without the external attention?
That’s almost certainly the case.. it feels like unless you make enough of a stink and enough users report the issues loudly and vocally, only then is it taken seriously by Apple. Catalina has been appalling. I run VMWare Fusion with Linux servers, I cannot reboot a host machine running servers daily. I am glad VMWare have taken this course of action, as it reflects badly and unfairly on them. I had two crashes last week which inevitably resulted in some lost data. This was after I installed 10.15.6, so I have rolled back to 10.15.5. I have had many reasons to be pi**ed with Apple since last November. Focusing on Mac demands reliable software.. which seems to have been an afterthought recently. Crappy software is not conducive to productivity... spending £4000 on a laptop should not leave you with so many problems for so long.
 
Good thing I decided to stay on Mojave then.
Or high Sierra for that matter, as the last version that can support 32-bit apps without nags etc.
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Question for Mac users, since Catalina has been famously buggy, what's the last best stable MacOS version?
Me personally is high Sierra. Full support of 32-bit apps, iTunes 12.6.5.3, and no certain cumbersome “security features” that probably matters most for hacking machines with physical access.
 
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I’m running fine 10.5.6 Mac OS and 11.5.0 VMWare running Windows 10. I found that VMWare above 11.5.0 to be buggy on my Mac and have had to revert back to 11.5.0 several months ago.
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It’s interesting that VMWare feel the need to publish this publicly rather than go through the normal channels. Do they feel it won’t get fixed without the external attention?
I would if it were affecting a majority of my customers
 
It’s interesting that VMWare feel the need to publish this publicly rather than go through the normal channels. Do they feel it won’t get fixed without the external attention?
This wasn't "published" so much as it was the response that was given in their own forum. Not calling Apple out, simply responding to their own customers.
 
Well, Microsoft might be interested in changing that.
I hope so. Unfortunately, it may be of little use to Mac users needing to run x86 Windows software; the ARM version of Windows performs atrociously in this respect, even on native hardware:

"If the Flex 5G’s maddeningly slow performance isn’t enough to scare you off, its horrific software compatibility issues will certainly do the trick. Thanks to the limitations of Windows 10 on ARM, which can only run native ARM64 applications (which are rare to non-existent) plus 32-bit Intel x86 desktop applications in emulation, an entire world of software compatibility is cut off to you. And this will impact anyone who tries to use this PC."

(My emphasis; source: https://www.thurrott.com/windows/windows-10/238321/lenovo-flex-5g-review )
 
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Just more low quality development work and insufficient automated testing or manual QA. This isn't news anymore; we know that Apple's engineering quality is bad. Given that Catalina is the ongoing basis for Big Sur, we know what to expect. As another poster said - and I'd personally broaden it to most software from Apple in the last couple of years - fix one thing, break two others. Shrug.

Which macOS is best? Well, going back a long way means a lot of modern stuff won't run. The last patch to Mojave is decent enough and has broad compatibility with both a wide range of Apple hardware, peripheral hardware (with associated drivers) and application software.

On ARM chipsets, while _virtualisation_ will only work for ARM guest operating systems (given the definition of what virtualisation is all about), there's no hard technical reason why you couldn't run X86 operating systems (or any other number of architectures) inside QEmu - that's emulation with its attendant significant speed hit, not virtualisation, but possible nonetheless.

If you're interested in X86 long term though, your best bet is to jump platform.
 
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